Title :
Fundamental-mode cutoff in depressed cladding multiple-fibre couplers
Author :
Love, J.D. ; Ankiewicz, A.
Author_Institution :
Australian National University, Department of Applied Mathematics, Institute of Advanced Studies, Canberra, Australia
Abstract :
The fundamental mode of a multiple-fibre coupler, consisting of an arbitrary number of identical parallel fibres, has exactly the same cutoff wavelength as one of the fibres in isolation from the others and is independent of the separation of the fibres. For a single-mode coupler composed of two depressed inner-cladding fibres, both the fundamental and second modes have finite cutoff wavelengths provided the fundamental mode of each fibre is cut off.
Keywords :
optical couplers; optical fibres; optical waveguide theory; arbitrary number of identical parallel fibres; crosstalk; cutoff wavelength; depressed cladding multiple-fibre couplers; fundamental mode; optical connectors; optical couplers; optical fibres; second modes; single mode fibres; single-mode coupler; two depressed inner-cladding fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840522
